Where does “sopōriferum” come from?

sopōriferum (Latin) comes from Latin sopōr, from Proto-Indo-European swepōr, from Proto-Indo-European swep- — to sleep.

Ancestry of “sopōriferum”, step by step

StepLanguageWordMeaning
1LatinsopōrA deep sleep, sopor; sleep (in general), slumber; catalepsy
2Proto-Indo-Europeanswepōr—
3Proto-Indo-Europeanswep-to sleep
Every word from Proto-Indo-European swep- →Every word from Proto-Indo-European swepōr →Every word from Latin sopōr →